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Yorodumi- PDB-1kfc: CRYSTAL STRUCTURE OF ALPHAT183V MUTANT OF TRYPTOPHAN SYNTHASE FRO... -
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Basic information
| Entry | Database: PDB / ID: 1kfc | ||||||
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| Title | CRYSTAL STRUCTURE OF ALPHAT183V MUTANT OF TRYPTOPHAN SYNTHASE FROM SALMONELLA TYPHIMURIUM With Indole Propanol Phosphate | ||||||
|  Components | (TRYPTOPHAN SYNTHASE ...) x 2 | ||||||
|  Keywords | LYASE / HELIX | ||||||
| Function / homology |  Function and homology information tryptophan synthase / tryptophan synthase activity / L-tryptophan biosynthetic process / identical protein binding / cytoplasm / cytosol Similarity search - Function | ||||||
| Biological species |  Salmonella typhimurium (bacteria) | ||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 1.5 Å | ||||||
|  Authors | Kulik, V. / Weyand, M. / Siedel, R. / Niks, D. / Arac, D. / Dunn, M.F. / Schlichting, I. | ||||||
|  Citation |  Journal: J.Mol.Biol. / Year: 2002 Title: On the Role of AlphaTHR183 in the Allosteric Regulation and Catalytic Mechanism of Tryptophan Synthase Authors: Kulik, V. / Weyand, M. / Siedel, R. / Niks, D. / Arac, D. / Dunn, M.F. / Schlichting, I. | ||||||
| History | 
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- Structure visualization
Structure visualization
| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
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- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  1kfc.cif.gz | 152.3 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb1kfc.ent.gz | 114.7 KB | Display |  PDB format | 
| PDBx/mmJSON format |  1kfc.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  1kfc_validation.pdf.gz | 768.5 KB | Display |  wwPDB validaton report | 
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| Full document |  1kfc_full_validation.pdf.gz | 774.7 KB | Display | |
| Data in XML |  1kfc_validation.xml.gz | 31.1 KB | Display | |
| Data in CIF |  1kfc_validation.cif.gz | 48.5 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/kf/1kfc  ftp://data.pdbj.org/pub/pdb/validation_reports/kf/1kfc | HTTPS FTP | 
-Related structure data
| Related structure data |  1k8xC  1kfbC  1kfeC  1kfjC  1kfkC  1qopS C: citing same article ( S: Starting model for refinement | 
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| Similar structure data | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| 1 |  
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| Unit cell | 
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- Components
Components
-TRYPTOPHAN SYNTHASE  ... , 2 types, 2 molecules AB 
| #1: Protein | Mass: 28696.824 Da / Num. of mol.: 1 / Mutation: T183V Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Salmonella typhimurium (bacteria) / Plasmid details: PSTB7 / Production host:   Escherichia coli (E. coli) / References: UniProt: P00929, tryptophan synthase | 
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| #2: Protein | Mass: 42918.879 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Salmonella typhimurium (bacteria) / Strain: LT2 / Plasmid details: PSTB7 / Production host:   Escherichia coli (E. coli) / References: UniProt: P0A2K1, tryptophan synthase | 
-Non-polymers , 4 types, 674 molecules 






| #3: Chemical | ChemComp-IPL / | 
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| #4: Chemical | ChemComp-NA / | 
| #5: Chemical | ChemComp-PLP / | 
| #6: Water | ChemComp-HOH / | 
-Experimental details
-Experiment
| Experiment | Method:  X-RAY DIFFRACTION / Number of used crystals: 1 | 
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- Sample preparation
Sample preparation
| Crystal | Density Matthews: 2.55 Å3/Da / Density % sol: 51.78 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Crystal grow | Temperature: 296 K / Method: vapor diffusion, hanging drop / pH: 7.8 Details: PEG 8000, EDTA, SPERMINE, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 296K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Crystal grow | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of the solutions | *PLUS 
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-Data collection
| Diffraction | Mean temperature: 100 K | 
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| Diffraction source | Source:  SYNCHROTRON / Site:  EMBL/DESY, HAMBURG  / Beamline: BW7B / Wavelength: 0.8345 Å | 
| Detector | Type: MARRESEARCH / Detector: IMAGE PLATE | 
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Wavelength: 0.8345 Å / Relative weight: 1 | 
| Reflection | Resolution: 1.45→91.3 Å / Num. all: 127862 / Num. obs: 122217 / % possible obs: 95.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Biso Wilson estimate: 16.6 Å2 | 
| Reflection shell | Resolution: 1.45→1.5 Å / % possible all: 91.1 | 
| Reflection | *PLUSNum. measured all: 312863  / Rmerge(I) obs: 0.054 | 
| Reflection shell | *PLUS% possible obs: 91.1 % / Rmerge(I) obs: 0.31  / Mean I/σ(I) obs: 2.3 | 
- Processing
Processing
| Software | 
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENT Starting model: 1qop Resolution: 1.5→19.99 Å / Rfactor Rfree error: 0.003 / Data cutoff high absF: 2078283.84 / Data cutoff high rms absF: 2078283.84 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 
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| Solvent computation | Solvent model: FLAT MODEL / Bsol: 53.2452 Å2 / ksol: 0.390057 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso  mean: 19.3 Å2 
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| Refine analyze | 
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| Refinement step | Cycle: LAST / Resolution: 1.5→19.99 Å 
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| Refine LS restraints | 
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| LS refinement shell | Resolution: 1.5→1.59 Å / Rfactor Rfree error: 0.011  / Total num. of bins used: 6 
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| Xplor file | 
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| Refinement | *PLUSHighest resolution: 1.5 Å / Lowest resolution: 20 Å / % reflection Rfree: 5 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints | *PLUS 
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| LS refinement shell | *PLUSRfactor Rfree: 0.33 | 
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